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Marketable Debt Securities - Additional Information (Detail)
$ in Thousands
8 Months Ended
May 08, 2021
USD ($)
security
Aug. 29, 2020
USD ($)
Marketable Debt Securities    
Available for sale securities debt maturity period range less than one year to approximately four years  
Marketable securities transferred $ 62,400  
Number of securities available for sale loss position | security 8  
Unrealized loss on securities $ 13 $ 7